[mechanics proposed] Update dirty convex hulls.
[mechanics proposed] Update dirty convex hulls.

fperignon/siconos,fperignon/siconos,bremond/siconos,bremond/siconos,radarsat1/siconos,radarsat1/siconos,siconos/siconos,radarsat1/siconos,fperignon/siconos,bremond/siconos,siconos/siconos,fperignon/siconos,fperignon/siconos,radarsat1/siconos,bremond/siconos,bremond/siconos,siconos/siconos,siconos/siconos,radarsat1/siconos